Intrusion detector



FIG. 1 is a front perspective view of an intrusion detector showing mynew design;

FIG. 2 is a front elevational view thereof, with the rear being flat andunornamented;

FIG. 3 is a top plan view thereof, the bottom being a mirror imagethereof;

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a left side elevational view thereof.

The ornamental design for an intrusion detector, as shown and described.